Etsy Engineering | Turbocharging Solr Index Replication with BitTorrentNote: In 2020 we updated this post to adopt more inclusive language. Going forward, we'll use "primary/replica" in our Code as Craft entries. Many of you probably use BitTorrent to download your favorite ebooks, MP3s, and movies. At Etsy, we use BitTorrent in our production systems for search replication. Search at Etsy Search at Etsy has grown significantly over the years. In January of 2009 we
